SC outlet gasket (the big fiber gasket between the base of the SC and lower intake)
2 yellow coolant O-rings between the SC and lower intake
TB gasket (recommended)
New Fuel Injector O-rings (recommended)
Loctite 510 anearobic sealer (gasket maker.....red stuff) between all mating surfaces of the SC (nosedrive to gear housing, gearhousing to rotor case). Not just the nosedrive.